This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A165023 #4 Mar 30 2012 17:28:43 %S A165023 126,570,41958,2788950,178846038,11451491670,732979762518, %T A165023 46912048616790,3002392592864598,192153469566932310, %U A165023 12297827549946664278,787061051157936166230,50371908681484475913558 %N A165023 Consider the base-4 Kaprekar map n->K(n) defined in A165012. Sequence gives least elements of each cycle of length > 1. %C A165023 Initial terms in base 4: 1332, 20322, 22033212, 22220321112, 22222033211112, 22222203332111112, 22222220333321111112, 22222222033333211111112, 22222222203333332111111112, 22222222220333333321111111112. %H A165023 Joseph Myers, <a href="/A165023/b165023.txt">Table of n, a(n) for n=1..67</a> %H A165023 <a href="/index/K#Kaprekar_map">Index entries for the Kaprekar map</a> %Y A165023 Cf. A165012, A165024, A165016, A165017, A165021, A165019, A165030. %Y A165023 In other bases: Empty (base 2), A165004 (base 3), A165043 (base 5), A165062 (base 6), A165082 (base 7), A165101 (base 8), A165121 (base 9), A164720 (base 10). %K A165023 base,nonn %O A165023 1,1 %A A165023 _Joseph Myers_, Sep 04 2009